<template>
  <div>
    <el-dialog title="修改角色信息" :visible.sync="dialogFormVisible">
      <el-form ref="dataForm" v-model="selectedRole" style="text-align: left">
        <el-form-item label="角色名" label-width="120px" prop="username">
          <el-input v-model="selectedRole.name" autocomplete="off" />
        </el-form-item>
        <el-form-item label="角色描述" label-width="120px" prop="name">
          <el-input v-model="selectedRole.nameZh" autocomplete="off" />
        </el-form-item>
        <el-form-item label="功能配置" label-width="120px" prop="perms">
          <el-checkbox-group v-model="selectedPermsIds">
            <el-checkbox v-for="(perm, i) in perms" :key="i" :label="perm.id">{{
              perm.desc_
            }}</el-checkbox>
          </el-checkbox-group>
        </el-form-item>
        <el-form-item label="菜单配置" label-width="120px" prop="menus">
          <el-tree
            ref="tree"
            :data="menus"
            :props="props"
            show-checkbox
            :default-checked-keys="selectedMenusIds"
            node-key="id"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button
          type="primary"
          @click="onSubmit(selectedRole)"
        >确 定</el-button>
      </div>
    </el-dialog>
    <el-row style="margin: 18px 0px 0px 18px ">
      <!-- <el-breadcrumb-item :to="{ path: '/admin/dashboard' }" -->
      <el-breadcrumb separator-class="el-icon-arrow-right">
        <el-breadcrumb-item>管理中心</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>角色配置</el-breadcrumb-item>
      </el-breadcrumb>
    </el-row>
    <role-create @onSubmit="listRoles()" />
    <el-card style="margin: 18px 2%;width: 95%">
      <el-table ref="multipleTable" :data="roles" stripe style="width: 100%" :max-height="700" @selection-change="handleSelectionChange">
        <el-table-column type="selection" width="55" />
        <el-table-column prop="id" label="id" width="100" />
        <el-table-column prop="name" label="角色名" fit />
        <el-table-column prop="nameZh" label="角色描述" fit />
        <el-table-column label="状态" width="100">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.enabled"
              active-color="#13ce66"
              inactive-color="#ff4949"
              @change="value => commitStatusChange(value, scope.row)"
            />
          </template>
        </el-table-column>
        <el-table-column label="操作" width="120">
          <template slot-scope="scope">
            <el-button type="text" size="small" @click="editRole(scope.row)">
              编辑
            </el-button>
            <el-button
              type="text"
              size="small"
              @click="handleDelete(scope.$index, scope.row)"
            >
              删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>
      <div style="margin: 20px 0 20px 0;float: left">
        <el-button @click="delchoose">批量删除</el-button>
      </div>
    </el-card>
  </div>
</template>

<script>
import RoleCreate from './RoleCreate'
export default {
  inject: ['reload'],
  name: 'UserRole',
  components: { RoleCreate },
  data() {
    return {
      dialogFormVisible: false,
      roles: [],
      perms: [],
      menus: [],
      selectedRole: [],
      selectedPermsIds: [],
      selectedMenusIds: [],
      // 批量选中的数据
      multipleSelection: [],
      // 保存批量选中后的数据
      delarr: [],
      props: {
        id: 'id',
        label: 'nameZh',
        children: 'children'
      }
    }
  },
  computed: {
    tableHeight() {
      return window.innerHeight - 320
    }
  },
  mounted() {
    this.listRoles()
    this.listPerms()
    this.listMenus()
  },
  methods: {
    listRoles() {
      var _this = this
      this.$axios.get('/api/admin/role').then(resp => {
        if (resp.status === 200) {
          _this.roles = resp.data.data
        }
      })
    },
    listPerms() {
      var _this = this
      this.$axios.get('/api/admin/role/perm').then(resp => {
        if (resp.status === 200) {
          _this.perms = resp.data.data
        }
      })
    },
    listMenus() {
      var _this = this
      this.$axios.get('/api/admin/role/menu').then(resp => {
        if (resp.status === 200) {
          _this.menus = resp.data.data
        }
      })
    },
    commitStatusChange(value, role) {
      if (role.id !== 1) {
        this.$confirm('是否更改角色状态？', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        })
          .then(() => {
            this.$axios
              .put('/api/admin/role/status', {
                enabled: value,
                id: role.id
              })
              .then(resp => {
                if (resp.status === 200) {
                  if (value) {
                    this.$message('角色 [' + role.nameZh + '] 已启用')
                    this.reload()
                  } else {
                    this.$message('角色 [' + role.nameZh + '] 已禁用')
                    this.reload()
                  }
                }
              })
          })
          .catch(() => {
            role.enabled = !role.enabled
            this.$message({
              type: 'info',
              message: '已取消'
            })
          })
      } else {
        role.enabled = true
        this.$alert('无法禁用系统管理员！')
      }
    },
    editRole(role) {
      this.dialogFormVisible = true
      this.selectedRole = role
      const permIds = []
      for (let i = 0; i < role.perms.length; i++) {
        permIds.push(role.perms[i].id)
      }
      this.selectedPermsIds = permIds
      const menuIds = []
      for (let i = 0; i < role.menus.length; i++) {
        menuIds.push(role.menus[i].id)
        for (let j = 0; j < role.menus[i].children.length; j++) {
          menuIds.push(role.menus[i].children[j].id)
        }
      }
      this.selectedMenusIds = menuIds
      // 判断树是否已经加载，第一次打开对话框前树不存在，会报错。所以需要设置 default-checked
      if (this.$refs.tree) {
        this.$refs.tree.setCheckedKeys(menuIds)
      }
    },
    onSubmit(role) {
      const _this = this
      // 根据视图绑定的角色 id 向后端传送角色信息
      const perms = []
      for (let i = 0; i < _this.selectedPermsIds.length; i++) {
        for (let j = 0; j < _this.perms.length; j++) {
          if (_this.selectedPermsIds[i] === _this.perms[j].id) {
            perms.push(_this.perms[j])
          }
        }
      }
      this.$axios
        .put('/api/admin/role', {
          id: role.id,
          name: role.name,
          nameZh: role.nameZh,
          enabled: role.enabled,
          perms: perms
        })
        .then(resp => {
          if (resp.status === 200) {
            this.$alert(resp.data.data)
            this.dialogFormVisible = false
            this.listRoles()
          }
        })
      this.$axios
        .put('/api/admin/role/menu?rid=' + role.id, {
          menusIds: this.$refs.tree.getCheckedKeys()
        })
        .then(resp => {
          if (resp.status === 200) {
            console.log(resp.data.data)
          }
        })
    },
    // 单条删除
    handleDelete(index, row) {
      console.log(row.id)
      const _id = row.id
      this.$axios
        .delete('/admin/role/del', { data: { id: _id }})
        .then(resp => {
          // console.log(resp);
          if (resp.status === 200) {
            this.$message.success(resp.data.data)
            this.reload()
          }
        })
        .catch(error => {
          this.$message.error(error.response.error)
          this.reload()
        })
    },
    // 得到选中数据
    handleSelectionChange(val) {
      const a = (this.multipleSelection = val)
      // console.log(a);
      const resdata = JSON.parse(JSON.stringify(this.multipleSelection))
      // console.log("运行记录组件接到的数据", resdata);
      const b = Object.assign({}, a)
      this.delall = b
    },
    // 批量删除
    delchoose() {
      console.log('---------------------------')
      // 监听选中框的个数，定义变量承载选中的个数
      const length = this.multipleSelection.length
      console.log(length)
      if (length < 2) {
        this.$message.error('请至少选择两条数据')
      } else {
        for (let i = 0; i < length; i++) {
          // console.log(this.multipleSelection[i])
          this.delarr.push(this.multipleSelection[i].id)
          console.log(this.delarr[i])
        }
        // let resdata = JSON.parse(JSON.stringify(this.delarr));
        const resdata = JSON.stringify(this.delarr)
        console.log(resdata)
        this.$axios
          .delete('/admin/role/delMore', {
            params: {
              users: this.delarr
            },
            paramsSerializer: params => {
              return this.$qs.stringify(params, { indices: false })
            }
          })
          .then(resp => {
            // console.log(resp);
            if (resp.status === 200) {
              this.$message.success(resp.data.data)
              this.reload()
              console.log(resp)
            }
          })
          .catch(error => {
            this.$message.error(error.response.error)
            this.reload()
          })
      }
    }

  }
}
</script>

<style scoped>
.add-button {
  float: left;
  margin: 18px 0 18px 10px;
}
</style>
